Trying to push a Web Messaging flow to /api/v2/conversations/webmessaging/flows using TypeScript. Validation keeps choking on the transition node definitions anyway. The request throws a 400 when I pass the JSON payload, even though it’s running against genesys-cloud-node@2.4.1 and node 18. Genesys-cloud-node expects strict condition syntax on every route, and it doesn’t validate the payload until the deployment step.
{
"name": "Support-Flow-Prod",
"type": "web-messaging",
"nodes": [
{
"id": "start",
"type": "start",
"transitions": [
{
"condition": "message contains 'refund'",
"targetNode": "refund_handler"
}
]
}
]
}
Cause: The API rejects the payload because transition nodes require a strictly typed condition object with explicit type and value fields. The SDK isn’t catching it early, but the server validates the schema on ingress. You’re probably passing a raw string or omitting the conditionType enum. The gateway I wrap around these endpoints uses DataLoader batching to batch flow updates, and it fails hard on malformed route conditions too.
Solution: Fix the JSON structure before hitting /api/v2/conversations/webmessaging/flows. Here’s the exact shape the validator expects:
{
"id": "transition-node-01",
"type": "transition",
"condition": {
"type": "string",
"conditionType": "equals",
"value": "approved"
},
"targetNodeId": "queue-node-02"
}
- Map your route logic to the
conditionType enum (equals, contains, regex).
- Pass the payload to the
PureCloudPlatformClientV2.FlowApi.createFlow() method.
- Check the
validationErrors array in the 400 response. It’ll point straight to the missing enum.
I usually run a quick schema validation layer in Apollo before hitting the REST endpoint. Saves a ton of trial and error. The SDK docs leave this part pretty vague. You’ll want to wrap the call in a try/catch and log the raw response body. Sometimes the error message gets truncated.
EmbeddableClientAppSdk handles the serialization logic for flow definitions in a specific manner. The transition node structure requires a precise mapping between the conditionType and the actionType. The error usually stems from a mismatch in how the transitionNodes array is indexed or typed.
Cause:
The validation engine rejects the payload when the condition object lacks the correct conditionType enum value relative to the parent node. You are likely passing a generic string instead of the specific enum required by the Web Messaging schema. The genesys-cloud-node client doesn’t enforce this enum check during the request construction phase, so the 400 error appears only after the server processes the ingress. The system expects the conditionType to align with the node type. When the SDK processes the flow, it looks for the conditionType field explicitly. If this field is missing, the parser throws the validation exception.
Solution:
Try reconstructing the payload by focusing on the transitionNodes array structure. First, ensure the conditionType matches the actionType of the node. Next, verify the condition object contains the type field set to true or false based on the logic. Use the following structure for the transition definition to bypass the validation error:
const transitionDef = {
condition: {
type: "true",
value: "true"
},
conditionType: "condition",
actionType: "webMessage"
};
You should also check the transitionNodes array to ensure it does not contain null entries. The API fails fast on empty slots in the array. Remove any undefined indices before sending. This approach usually resolves the schema rejection without needing a custom wrapper. The inline code example shows the exact keys the parser requires. You’ll see the validation pass.
terraform-provider-cxascode handles the transition mapping by first parsing the conditionType enum, then cross-referencing the actionType against the route index, so you’ll just need to replace that raw string with a strict condition: { type: "regex", value: ".*" } object before the API chokes on it. Watch out for auto-generated transition IDs shifting during the push, since the state drift backup will throw a silent mismatch if the indices don’t line up exactly.